import sqlalchemy
from sqlalchemy import MetaData
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
import const

engine = sqlalchemy.create_engine(
    const.DATABASE_URL, connect_args={"check_same_thread": False}
)


SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

meta = MetaData(naming_convention={
    "ix": "ix_%(column_0_label)s",
    "uq": "uq_%(table_name)s_%(column_0_name)s",
    "ck": "ck_%(table_name)s_%(column_0_name)s",
    "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
    "pk": "pk_%(table_name)s"
})
Base = declarative_base(metadata=meta)